]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /**************************************************************** |
2 | * | |
3 | * kaweth.c - driver for KL5KUSB101 based USB->Ethernet | |
4 | * | |
5 | * (c) 2000 Interlan Communications | |
6 | * (c) 2000 Stephane Alnet | |
7 | * (C) 2001 Brad Hards | |
8 | * (C) 2002 Oliver Neukum | |
9 | * | |
10 | * Original author: The Zapman <zapman@interlan.net> | |
11 | * Inspired by, and much credit goes to Michael Rothwell | |
12 | * <rothwell@interlan.net> for the test equipment, help, and patience | |
13 | * Based off of (and with thanks to) Petko Manolov's pegaus.c driver. | |
14 | * Also many thanks to Joel Silverman and Ed Surprenant at Kawasaki | |
15 | * for providing the firmware and driver resources. | |
16 | * | |
17 | * This program is free software; you can redistribute it and/or | |
18 | * modify it under the terms of the GNU General Public License as | |
19 | * published by the Free Software Foundation; either version 2, or | |
20 | * (at your option) any later version. | |
21 | * | |
22 | * This program is distributed in the hope that it will be useful, | |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * GNU General Public License for more details. | |
26 | * | |
27 | * You should have received a copy of the GNU General Public License | |
9cb00073 | 28 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
1da177e4 LT |
29 | * |
30 | ****************************************************************/ | |
31 | ||
32 | /* TODO: | |
1da177e4 LT |
33 | * Develop test procedures for USB net interfaces |
34 | * Run test procedures | |
35 | * Fix bugs from previous two steps | |
36 | * Snoop other OSs for any tricks we're not doing | |
1da177e4 LT |
37 | * Reduce arbitrary timeouts |
38 | * Smart multicast support | |
39 | * Temporary MAC change support | |
40 | * Tunable SOFs parameter - ioctl()? | |
41 | * Ethernet stats collection | |
42 | * Code formatting improvements | |
43 | */ | |
44 | ||
45 | #include <linux/module.h> | |
1da177e4 LT |
46 | #include <linux/slab.h> |
47 | #include <linux/string.h> | |
1da177e4 LT |
48 | #include <linux/delay.h> |
49 | #include <linux/netdevice.h> | |
50 | #include <linux/etherdevice.h> | |
51 | #include <linux/usb.h> | |
52 | #include <linux/types.h> | |
53 | #include <linux/ethtool.h> | |
1da177e4 LT |
54 | #include <linux/dma-mapping.h> |
55 | #include <linux/wait.h> | |
79682499 | 56 | #include <linux/firmware.h> |
7c0f6ba6 | 57 | #include <linux/uaccess.h> |
1da177e4 LT |
58 | #include <asm/byteorder.h> |
59 | ||
60 | #undef DEBUG | |
61 | ||
1da177e4 LT |
62 | #define KAWETH_MTU 1514 |
63 | #define KAWETH_BUF_SIZE 1664 | |
64 | #define KAWETH_TX_TIMEOUT (5 * HZ) | |
65 | #define KAWETH_SCRATCH_SIZE 32 | |
66 | #define KAWETH_FIRMWARE_BUF_SIZE 4096 | |
2b2b2e35 | 67 | #define KAWETH_CONTROL_TIMEOUT (30000) |
1da177e4 LT |
68 | |
69 | #define KAWETH_STATUS_BROKEN 0x0000001 | |
70 | #define KAWETH_STATUS_CLOSING 0x0000002 | |
1a2ea1df ON |
71 | #define KAWETH_STATUS_SUSPENDING 0x0000004 |
72 | ||
73 | #define KAWETH_STATUS_BLOCKED (KAWETH_STATUS_CLOSING | KAWETH_STATUS_SUSPENDING) | |
1da177e4 LT |
74 | |
75 | #define KAWETH_PACKET_FILTER_PROMISCUOUS 0x01 | |
76 | #define KAWETH_PACKET_FILTER_ALL_MULTICAST 0x02 | |
77 | #define KAWETH_PACKET_FILTER_DIRECTED 0x04 | |
78 | #define KAWETH_PACKET_FILTER_BROADCAST 0x08 | |
79 | #define KAWETH_PACKET_FILTER_MULTICAST 0x10 | |
80 | ||
81 | /* Table 7 */ | |
82 | #define KAWETH_COMMAND_GET_ETHERNET_DESC 0x00 | |
83 | #define KAWETH_COMMAND_MULTICAST_FILTERS 0x01 | |
84 | #define KAWETH_COMMAND_SET_PACKET_FILTER 0x02 | |
85 | #define KAWETH_COMMAND_STATISTICS 0x03 | |
86 | #define KAWETH_COMMAND_SET_TEMP_MAC 0x06 | |
87 | #define KAWETH_COMMAND_GET_TEMP_MAC 0x07 | |
88 | #define KAWETH_COMMAND_SET_URB_SIZE 0x08 | |
89 | #define KAWETH_COMMAND_SET_SOFS_WAIT 0x09 | |
90 | #define KAWETH_COMMAND_SCAN 0xFF | |
91 | ||
92 | #define KAWETH_SOFS_TO_WAIT 0x05 | |
93 | ||
94 | #define INTBUFFERSIZE 4 | |
95 | ||
96 | #define STATE_OFFSET 0 | |
97 | #define STATE_MASK 0x40 | |
98 | #define STATE_SHIFT 5 | |
99 | ||
1a2ea1df ON |
100 | #define IS_BLOCKED(s) (s & KAWETH_STATUS_BLOCKED) |
101 | ||
1da177e4 LT |
102 | |
103 | MODULE_AUTHOR("Michael Zappe <zapman@interlan.net>, Stephane Alnet <stephane@u-picardie.fr>, Brad Hards <bhards@bigpond.net.au> and Oliver Neukum <oliver@neukum.org>"); | |
104 | MODULE_DESCRIPTION("KL5USB101 USB Ethernet driver"); | |
105 | MODULE_LICENSE("GPL"); | |
79682499 DW |
106 | MODULE_FIRMWARE("kaweth/new_code.bin"); |
107 | MODULE_FIRMWARE("kaweth/new_code_fix.bin"); | |
108 | MODULE_FIRMWARE("kaweth/trigger_code.bin"); | |
109 | MODULE_FIRMWARE("kaweth/trigger_code_fix.bin"); | |
1da177e4 LT |
110 | |
111 | static const char driver_name[] = "kaweth"; | |
112 | ||
113 | static int kaweth_probe( | |
114 | struct usb_interface *intf, | |
115 | const struct usb_device_id *id /* from id_table */ | |
116 | ); | |
117 | static void kaweth_disconnect(struct usb_interface *intf); | |
118 | static int kaweth_internal_control_msg(struct usb_device *usb_dev, | |
119 | unsigned int pipe, | |
120 | struct usb_ctrlrequest *cmd, void *data, | |
121 | int len, int timeout); | |
1a2ea1df ON |
122 | static int kaweth_suspend(struct usb_interface *intf, pm_message_t message); |
123 | static int kaweth_resume(struct usb_interface *intf); | |
1da177e4 LT |
124 | |
125 | /**************************************************************** | |
126 | * usb_device_id | |
127 | ****************************************************************/ | |
128 | static struct usb_device_id usb_klsi_table[] = { | |
129 | { USB_DEVICE(0x03e8, 0x0008) }, /* AOX Endpoints USB Ethernet */ | |
130 | { USB_DEVICE(0x04bb, 0x0901) }, /* I-O DATA USB-ET/T */ | |
131 | { USB_DEVICE(0x0506, 0x03e8) }, /* 3Com 3C19250 */ | |
132 | { USB_DEVICE(0x0506, 0x11f8) }, /* 3Com 3C460 */ | |
133 | { USB_DEVICE(0x0557, 0x2002) }, /* ATEN USB Ethernet */ | |
134 | { USB_DEVICE(0x0557, 0x4000) }, /* D-Link DSB-650C */ | |
135 | { USB_DEVICE(0x0565, 0x0002) }, /* Peracom Enet */ | |
136 | { USB_DEVICE(0x0565, 0x0003) }, /* Optus@Home UEP1045A */ | |
137 | { USB_DEVICE(0x0565, 0x0005) }, /* Peracom Enet2 */ | |
138 | { USB_DEVICE(0x05e9, 0x0008) }, /* KLSI KL5KUSB101B */ | |
139 | { USB_DEVICE(0x05e9, 0x0009) }, /* KLSI KL5KUSB101B (Board change) */ | |
140 | { USB_DEVICE(0x066b, 0x2202) }, /* Linksys USB10T */ | |
141 | { USB_DEVICE(0x06e1, 0x0008) }, /* ADS USB-10BT */ | |
142 | { USB_DEVICE(0x06e1, 0x0009) }, /* ADS USB-10BT */ | |
143 | { USB_DEVICE(0x0707, 0x0100) }, /* SMC 2202USB */ | |
144 | { USB_DEVICE(0x07aa, 0x0001) }, /* Correga K.K. */ | |
145 | { USB_DEVICE(0x07b8, 0x4000) }, /* D-Link DU-E10 */ | |
dacf4fc8 | 146 | { USB_DEVICE(0x07c9, 0xb010) }, /* Allied Telesyn AT-USB10 USB Ethernet Adapter */ |
1da177e4 LT |
147 | { USB_DEVICE(0x0846, 0x1001) }, /* NetGear EA-101 */ |
148 | { USB_DEVICE(0x0846, 0x1002) }, /* NetGear EA-101 */ | |
149 | { USB_DEVICE(0x085a, 0x0008) }, /* PortGear Ethernet Adapter */ | |
150 | { USB_DEVICE(0x085a, 0x0009) }, /* PortGear Ethernet Adapter */ | |
151 | { USB_DEVICE(0x087d, 0x5704) }, /* Jaton USB Ethernet Device Adapter */ | |
152 | { USB_DEVICE(0x0951, 0x0008) }, /* Kingston Technology USB Ethernet Adapter */ | |
153 | { USB_DEVICE(0x095a, 0x3003) }, /* Portsmith Express Ethernet Adapter */ | |
154 | { USB_DEVICE(0x10bd, 0x1427) }, /* ASANTE USB To Ethernet Adapter */ | |
155 | { USB_DEVICE(0x1342, 0x0204) }, /* Mobility USB-Ethernet Adapter */ | |
156 | { USB_DEVICE(0x13d2, 0x0400) }, /* Shark Pocket Adapter */ | |
157 | { USB_DEVICE(0x1485, 0x0001) }, /* Silicom U2E */ | |
158 | { USB_DEVICE(0x1485, 0x0002) }, /* Psion Dacom Gold Port Ethernet */ | |
159 | { USB_DEVICE(0x1645, 0x0005) }, /* Entrega E45 */ | |
160 | { USB_DEVICE(0x1645, 0x0008) }, /* Entrega USB Ethernet Adapter */ | |
161 | { USB_DEVICE(0x1645, 0x8005) }, /* PortGear Ethernet Adapter */ | |
486ba2a9 | 162 | { USB_DEVICE(0x1668, 0x0323) }, /* Actiontec USB Ethernet */ |
1da177e4 LT |
163 | { USB_DEVICE(0x2001, 0x4000) }, /* D-link DSB-650C */ |
164 | {} /* Null terminator */ | |
165 | }; | |
166 | ||
167 | MODULE_DEVICE_TABLE (usb, usb_klsi_table); | |
168 | ||
169 | /**************************************************************** | |
170 | * kaweth_driver | |
171 | ****************************************************************/ | |
172 | static struct usb_driver kaweth_driver = { | |
1da177e4 LT |
173 | .name = driver_name, |
174 | .probe = kaweth_probe, | |
175 | .disconnect = kaweth_disconnect, | |
1a2ea1df ON |
176 | .suspend = kaweth_suspend, |
177 | .resume = kaweth_resume, | |
1da177e4 | 178 | .id_table = usb_klsi_table, |
b98b98f9 | 179 | .supports_autosuspend = 1, |
e1f12eb6 | 180 | .disable_hub_initiated_lpm = 1, |
1da177e4 LT |
181 | }; |
182 | ||
183 | typedef __u8 eth_addr_t[6]; | |
184 | ||
185 | /**************************************************************** | |
186 | * usb_eth_dev | |
187 | ****************************************************************/ | |
188 | struct usb_eth_dev { | |
189 | char *name; | |
190 | __u16 vendor; | |
191 | __u16 device; | |
192 | void *pdata; | |
193 | }; | |
194 | ||
195 | /**************************************************************** | |
196 | * kaweth_ethernet_configuration | |
197 | * Refer Table 8 | |
198 | ****************************************************************/ | |
199 | struct kaweth_ethernet_configuration | |
200 | { | |
201 | __u8 size; | |
202 | __u8 reserved1; | |
203 | __u8 reserved2; | |
204 | eth_addr_t hw_addr; | |
205 | __u32 statistics_mask; | |
206 | __le16 segment_size; | |
207 | __u16 max_multicast_filters; | |
208 | __u8 reserved3; | |
ba2d3587 | 209 | } __packed; |
1da177e4 LT |
210 | |
211 | /**************************************************************** | |
212 | * kaweth_device | |
213 | ****************************************************************/ | |
214 | struct kaweth_device | |
215 | { | |
216 | spinlock_t device_lock; | |
217 | ||
218 | __u32 status; | |
219 | int end; | |
1da177e4 LT |
220 | int suspend_lowmem_rx; |
221 | int suspend_lowmem_ctrl; | |
222 | int linkstate; | |
1a2ea1df | 223 | int opened; |
c4028958 | 224 | struct delayed_work lowmem_work; |
1da177e4 LT |
225 | |
226 | struct usb_device *dev; | |
b98b98f9 | 227 | struct usb_interface *intf; |
1da177e4 LT |
228 | struct net_device *net; |
229 | wait_queue_head_t term_wait; | |
230 | ||
231 | struct urb *rx_urb; | |
232 | struct urb *tx_urb; | |
233 | struct urb *irq_urb; | |
234 | ||
235 | dma_addr_t intbufferhandle; | |
236 | __u8 *intbuffer; | |
237 | dma_addr_t rxbufferhandle; | |
238 | __u8 *rx_buf; | |
239 | ||
240 | ||
241 | struct sk_buff *tx_skb; | |
242 | ||
243 | __u8 *firmware_buf; | |
244 | __u8 scratch[KAWETH_SCRATCH_SIZE]; | |
245 | __u16 packet_filter_bitmap; | |
246 | ||
247 | struct kaweth_ethernet_configuration configuration; | |
248 | ||
249 | struct net_device_stats stats; | |
250 | }; | |
251 | ||
1da177e4 LT |
252 | /**************************************************************** |
253 | * kaweth_control | |
254 | ****************************************************************/ | |
255 | static int kaweth_control(struct kaweth_device *kaweth, | |
256 | unsigned int pipe, | |
257 | __u8 request, | |
258 | __u8 requesttype, | |
259 | __u16 value, | |
260 | __u16 index, | |
261 | void *data, | |
262 | __u16 size, | |
263 | int timeout) | |
264 | { | |
265 | struct usb_ctrlrequest *dr; | |
051b982b | 266 | int retval; |
1da177e4 | 267 | |
1da177e4 | 268 | if(in_interrupt()) { |
49ae25b0 | 269 | netdev_dbg(kaweth->net, "in_interrupt()\n"); |
1da177e4 LT |
270 | return -EBUSY; |
271 | } | |
272 | ||
273 | dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC); | |
49ae25b0 | 274 | if (!dr) |
1da177e4 | 275 | return -ENOMEM; |
1da177e4 | 276 | |
051b982b | 277 | dr->bRequestType = requesttype; |
1da177e4 | 278 | dr->bRequest = request; |
da2bbdcc HH |
279 | dr->wValue = cpu_to_le16(value); |
280 | dr->wIndex = cpu_to_le16(index); | |
281 | dr->wLength = cpu_to_le16(size); | |
1da177e4 | 282 | |
051b982b KC |
283 | retval = kaweth_internal_control_msg(kaweth->dev, |
284 | pipe, | |
285 | dr, | |
286 | data, | |
287 | size, | |
288 | timeout); | |
289 | ||
290 | kfree(dr); | |
291 | return retval; | |
1da177e4 LT |
292 | } |
293 | ||
294 | /**************************************************************** | |
295 | * kaweth_read_configuration | |
296 | ****************************************************************/ | |
297 | static int kaweth_read_configuration(struct kaweth_device *kaweth) | |
298 | { | |
299 | int retval; | |
300 | ||
1da177e4 LT |
301 | retval = kaweth_control(kaweth, |
302 | usb_rcvctrlpipe(kaweth->dev, 0), | |
303 | KAWETH_COMMAND_GET_ETHERNET_DESC, | |
304 | USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE, | |
305 | 0, | |
306 | 0, | |
307 | (void *)&kaweth->configuration, | |
308 | sizeof(kaweth->configuration), | |
309 | KAWETH_CONTROL_TIMEOUT); | |
310 | ||
311 | return retval; | |
312 | } | |
313 | ||
314 | /**************************************************************** | |
315 | * kaweth_set_urb_size | |
316 | ****************************************************************/ | |
317 | static int kaweth_set_urb_size(struct kaweth_device *kaweth, __u16 urb_size) | |
318 | { | |
319 | int retval; | |
320 | ||
49ae25b0 | 321 | netdev_dbg(kaweth->net, "Setting URB size to %d\n", (unsigned)urb_size); |
1da177e4 LT |
322 | |
323 | retval = kaweth_control(kaweth, | |
324 | usb_sndctrlpipe(kaweth->dev, 0), | |
325 | KAWETH_COMMAND_SET_URB_SIZE, | |
326 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
327 | urb_size, | |
328 | 0, | |
329 | (void *)&kaweth->scratch, | |
330 | 0, | |
331 | KAWETH_CONTROL_TIMEOUT); | |
332 | ||
333 | return retval; | |
334 | } | |
335 | ||
336 | /**************************************************************** | |
337 | * kaweth_set_sofs_wait | |
338 | ****************************************************************/ | |
339 | static int kaweth_set_sofs_wait(struct kaweth_device *kaweth, __u16 sofs_wait) | |
340 | { | |
341 | int retval; | |
342 | ||
49ae25b0 | 343 | netdev_dbg(kaweth->net, "Set SOFS wait to %d\n", (unsigned)sofs_wait); |
1da177e4 LT |
344 | |
345 | retval = kaweth_control(kaweth, | |
346 | usb_sndctrlpipe(kaweth->dev, 0), | |
347 | KAWETH_COMMAND_SET_SOFS_WAIT, | |
348 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
349 | sofs_wait, | |
350 | 0, | |
351 | (void *)&kaweth->scratch, | |
352 | 0, | |
353 | KAWETH_CONTROL_TIMEOUT); | |
354 | ||
355 | return retval; | |
356 | } | |
357 | ||
358 | /**************************************************************** | |
359 | * kaweth_set_receive_filter | |
360 | ****************************************************************/ | |
361 | static int kaweth_set_receive_filter(struct kaweth_device *kaweth, | |
362 | __u16 receive_filter) | |
363 | { | |
364 | int retval; | |
365 | ||
49ae25b0 GKH |
366 | netdev_dbg(kaweth->net, "Set receive filter to %d\n", |
367 | (unsigned)receive_filter); | |
1da177e4 LT |
368 | |
369 | retval = kaweth_control(kaweth, | |
370 | usb_sndctrlpipe(kaweth->dev, 0), | |
371 | KAWETH_COMMAND_SET_PACKET_FILTER, | |
372 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
373 | receive_filter, | |
374 | 0, | |
375 | (void *)&kaweth->scratch, | |
376 | 0, | |
377 | KAWETH_CONTROL_TIMEOUT); | |
378 | ||
379 | return retval; | |
380 | } | |
381 | ||
382 | /**************************************************************** | |
383 | * kaweth_download_firmware | |
384 | ****************************************************************/ | |
385 | static int kaweth_download_firmware(struct kaweth_device *kaweth, | |
79682499 | 386 | const char *fwname, |
1da177e4 LT |
387 | __u8 interrupt, |
388 | __u8 type) | |
389 | { | |
79682499 DW |
390 | const struct firmware *fw; |
391 | int data_len; | |
392 | int ret; | |
393 | ||
394 | ret = request_firmware(&fw, fwname, &kaweth->dev->dev); | |
395 | if (ret) { | |
db6b2219 | 396 | dev_err(&kaweth->intf->dev, "Firmware request failed\n"); |
79682499 DW |
397 | return ret; |
398 | } | |
399 | ||
400 | if (fw->size > KAWETH_FIRMWARE_BUF_SIZE) { | |
db6b2219 GKH |
401 | dev_err(&kaweth->intf->dev, "Firmware too big: %zu\n", |
402 | fw->size); | |
986e3f6e | 403 | release_firmware(fw); |
1da177e4 LT |
404 | return -ENOSPC; |
405 | } | |
79682499 DW |
406 | data_len = fw->size; |
407 | memcpy(kaweth->firmware_buf, fw->data, fw->size); | |
1da177e4 | 408 | |
79682499 | 409 | release_firmware(fw); |
1da177e4 LT |
410 | |
411 | kaweth->firmware_buf[2] = (data_len & 0xFF) - 7; | |
412 | kaweth->firmware_buf[3] = data_len >> 8; | |
413 | kaweth->firmware_buf[4] = type; | |
414 | kaweth->firmware_buf[5] = interrupt; | |
415 | ||
49ae25b0 | 416 | netdev_dbg(kaweth->net, "High: %i, Low:%i\n", kaweth->firmware_buf[3], |
1da177e4 LT |
417 | kaweth->firmware_buf[2]); |
418 | ||
49ae25b0 GKH |
419 | netdev_dbg(kaweth->net, |
420 | "Downloading firmware at %p to kaweth device at %p\n", | |
0abc1cee | 421 | kaweth->firmware_buf, kaweth); |
49ae25b0 | 422 | netdev_dbg(kaweth->net, "Firmware length: %d\n", data_len); |
1da177e4 LT |
423 | |
424 | return kaweth_control(kaweth, | |
425 | usb_sndctrlpipe(kaweth->dev, 0), | |
426 | KAWETH_COMMAND_SCAN, | |
427 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
428 | 0, | |
429 | 0, | |
430 | (void *)kaweth->firmware_buf, | |
431 | data_len, | |
432 | KAWETH_CONTROL_TIMEOUT); | |
433 | } | |
434 | ||
435 | /**************************************************************** | |
436 | * kaweth_trigger_firmware | |
437 | ****************************************************************/ | |
438 | static int kaweth_trigger_firmware(struct kaweth_device *kaweth, | |
439 | __u8 interrupt) | |
440 | { | |
441 | kaweth->firmware_buf[0] = 0xB6; | |
442 | kaweth->firmware_buf[1] = 0xC3; | |
443 | kaweth->firmware_buf[2] = 0x01; | |
444 | kaweth->firmware_buf[3] = 0x00; | |
445 | kaweth->firmware_buf[4] = 0x06; | |
446 | kaweth->firmware_buf[5] = interrupt; | |
447 | kaweth->firmware_buf[6] = 0x00; | |
448 | kaweth->firmware_buf[7] = 0x00; | |
449 | ||
1da177e4 LT |
450 | return kaweth_control(kaweth, |
451 | usb_sndctrlpipe(kaweth->dev, 0), | |
452 | KAWETH_COMMAND_SCAN, | |
453 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
454 | 0, | |
455 | 0, | |
456 | (void *)kaweth->firmware_buf, | |
457 | 8, | |
458 | KAWETH_CONTROL_TIMEOUT); | |
459 | } | |
460 | ||
461 | /**************************************************************** | |
462 | * kaweth_reset | |
463 | ****************************************************************/ | |
464 | static int kaweth_reset(struct kaweth_device *kaweth) | |
465 | { | |
466 | int result; | |
467 | ||
f0816ce3 | 468 | result = usb_reset_configuration(kaweth->dev); |
f2d45cd9 | 469 | mdelay(10); |
1da177e4 | 470 | |
49ae25b0 | 471 | netdev_dbg(kaweth->net, "kaweth_reset() returns %d.\n", result); |
1da177e4 LT |
472 | |
473 | return result; | |
474 | } | |
475 | ||
7d12e780 | 476 | static void kaweth_usb_receive(struct urb *); |
55016f10 | 477 | static int kaweth_resubmit_rx_urb(struct kaweth_device *, gfp_t); |
1da177e4 LT |
478 | |
479 | /**************************************************************** | |
480 | int_callback | |
481 | *****************************************************************/ | |
482 | ||
55016f10 | 483 | static void kaweth_resubmit_int_urb(struct kaweth_device *kaweth, gfp_t mf) |
1da177e4 LT |
484 | { |
485 | int status; | |
486 | ||
487 | status = usb_submit_urb (kaweth->irq_urb, mf); | |
488 | if (unlikely(status == -ENOMEM)) { | |
489 | kaweth->suspend_lowmem_ctrl = 1; | |
490 | schedule_delayed_work(&kaweth->lowmem_work, HZ/4); | |
491 | } else { | |
492 | kaweth->suspend_lowmem_ctrl = 0; | |
493 | } | |
494 | ||
495 | if (status) | |
db6b2219 GKH |
496 | dev_err(&kaweth->intf->dev, |
497 | "can't resubmit intr, %s-%s, status %d\n", | |
498 | kaweth->dev->bus->bus_name, | |
499 | kaweth->dev->devpath, status); | |
1da177e4 LT |
500 | } |
501 | ||
7d12e780 | 502 | static void int_callback(struct urb *u) |
1da177e4 LT |
503 | { |
504 | struct kaweth_device *kaweth = u->context; | |
505 | int act_state; | |
c94cb314 | 506 | int status = u->status; |
1da177e4 | 507 | |
c94cb314 | 508 | switch (status) { |
1da177e4 LT |
509 | case 0: /* success */ |
510 | break; | |
511 | case -ECONNRESET: /* unlink */ | |
512 | case -ENOENT: | |
513 | case -ESHUTDOWN: | |
514 | return; | |
515 | /* -EPIPE: should clear the halt */ | |
516 | default: /* error */ | |
517 | goto resubmit; | |
518 | } | |
519 | ||
520 | /* we check the link state to report changes */ | |
521 | if (kaweth->linkstate != (act_state = ( kaweth->intbuffer[STATE_OFFSET] | STATE_MASK) >> STATE_SHIFT)) { | |
58125f95 | 522 | if (act_state) |
1da177e4 LT |
523 | netif_carrier_on(kaweth->net); |
524 | else | |
525 | netif_carrier_off(kaweth->net); | |
526 | ||
527 | kaweth->linkstate = act_state; | |
528 | } | |
529 | resubmit: | |
530 | kaweth_resubmit_int_urb(kaweth, GFP_ATOMIC); | |
531 | } | |
532 | ||
c4028958 | 533 | static void kaweth_resubmit_tl(struct work_struct *work) |
1da177e4 | 534 | { |
c4028958 DH |
535 | struct kaweth_device *kaweth = |
536 | container_of(work, struct kaweth_device, lowmem_work.work); | |
1da177e4 | 537 | |
1a2ea1df | 538 | if (IS_BLOCKED(kaweth->status)) |
1da177e4 LT |
539 | return; |
540 | ||
541 | if (kaweth->suspend_lowmem_rx) | |
542 | kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); | |
543 | ||
544 | if (kaweth->suspend_lowmem_ctrl) | |
545 | kaweth_resubmit_int_urb(kaweth, GFP_NOIO); | |
546 | } | |
547 | ||
548 | ||
549 | /**************************************************************** | |
550 | * kaweth_resubmit_rx_urb | |
551 | ****************************************************************/ | |
552 | static int kaweth_resubmit_rx_urb(struct kaweth_device *kaweth, | |
55016f10 | 553 | gfp_t mem_flags) |
1da177e4 LT |
554 | { |
555 | int result; | |
556 | ||
557 | usb_fill_bulk_urb(kaweth->rx_urb, | |
558 | kaweth->dev, | |
559 | usb_rcvbulkpipe(kaweth->dev, 1), | |
560 | kaweth->rx_buf, | |
561 | KAWETH_BUF_SIZE, | |
562 | kaweth_usb_receive, | |
563 | kaweth); | |
564 | kaweth->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
565 | kaweth->rx_urb->transfer_dma = kaweth->rxbufferhandle; | |
566 | ||
567 | if((result = usb_submit_urb(kaweth->rx_urb, mem_flags))) { | |
568 | if (result == -ENOMEM) { | |
569 | kaweth->suspend_lowmem_rx = 1; | |
570 | schedule_delayed_work(&kaweth->lowmem_work, HZ/4); | |
571 | } | |
db6b2219 GKH |
572 | dev_err(&kaweth->intf->dev, "resubmitting rx_urb %d failed\n", |
573 | result); | |
1da177e4 LT |
574 | } else { |
575 | kaweth->suspend_lowmem_rx = 0; | |
576 | } | |
577 | ||
578 | return result; | |
579 | } | |
580 | ||
581 | static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth); | |
582 | ||
583 | /**************************************************************** | |
584 | * kaweth_usb_receive | |
585 | ****************************************************************/ | |
7d12e780 | 586 | static void kaweth_usb_receive(struct urb *urb) |
1da177e4 | 587 | { |
49ae25b0 | 588 | struct device *dev = &urb->dev->dev; |
1da177e4 LT |
589 | struct kaweth_device *kaweth = urb->context; |
590 | struct net_device *net = kaweth->net; | |
c94cb314 | 591 | int status = urb->status; |
1da177e4 LT |
592 | |
593 | int count = urb->actual_length; | |
594 | int count2 = urb->transfer_buffer_length; | |
595 | ||
596 | __u16 pkt_len = le16_to_cpup((__le16 *)kaweth->rx_buf); | |
597 | ||
598 | struct sk_buff *skb; | |
599 | ||
710b523a LF |
600 | if (unlikely(status == -EPIPE)) { |
601 | kaweth->stats.rx_errors++; | |
1da177e4 LT |
602 | kaweth->end = 1; |
603 | wake_up(&kaweth->term_wait); | |
49ae25b0 | 604 | dev_dbg(dev, "Status was -EPIPE.\n"); |
1da177e4 LT |
605 | return; |
606 | } | |
710b523a LF |
607 | if (unlikely(status == -ECONNRESET || status == -ESHUTDOWN)) { |
608 | /* we are killed - set a flag and wake the disconnect handler */ | |
609 | kaweth->end = 1; | |
610 | wake_up(&kaweth->term_wait); | |
49ae25b0 | 611 | dev_dbg(dev, "Status was -ECONNRESET or -ESHUTDOWN.\n"); |
710b523a LF |
612 | return; |
613 | } | |
614 | if (unlikely(status == -EPROTO || status == -ETIME || | |
615 | status == -EILSEQ)) { | |
616 | kaweth->stats.rx_errors++; | |
49ae25b0 | 617 | dev_dbg(dev, "Status was -EPROTO, -ETIME, or -EILSEQ.\n"); |
710b523a LF |
618 | return; |
619 | } | |
620 | if (unlikely(status == -EOVERFLOW)) { | |
621 | kaweth->stats.rx_errors++; | |
49ae25b0 | 622 | dev_dbg(dev, "Status was -EOVERFLOW.\n"); |
710b523a | 623 | } |
1a2ea1df ON |
624 | spin_lock(&kaweth->device_lock); |
625 | if (IS_BLOCKED(kaweth->status)) { | |
626 | spin_unlock(&kaweth->device_lock); | |
1da177e4 | 627 | return; |
1a2ea1df ON |
628 | } |
629 | spin_unlock(&kaweth->device_lock); | |
1da177e4 | 630 | |
c94cb314 | 631 | if(status && status != -EREMOTEIO && count != 1) { |
db6b2219 GKH |
632 | dev_err(&kaweth->intf->dev, |
633 | "%s RX status: %d count: %d packet_len: %d\n", | |
634 | net->name, status, count, (int)pkt_len); | |
1da177e4 LT |
635 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); |
636 | return; | |
637 | } | |
638 | ||
639 | if(kaweth->net && (count > 2)) { | |
640 | if(pkt_len > (count - 2)) { | |
db6b2219 GKH |
641 | dev_err(&kaweth->intf->dev, |
642 | "Packet length too long for USB frame (pkt_len: %x, count: %x)\n", | |
643 | pkt_len, count); | |
644 | dev_err(&kaweth->intf->dev, "Packet len & 2047: %x\n", | |
645 | pkt_len & 2047); | |
646 | dev_err(&kaweth->intf->dev, "Count 2: %x\n", count2); | |
1da177e4 LT |
647 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); |
648 | return; | |
649 | } | |
650 | ||
651 | if(!(skb = dev_alloc_skb(pkt_len+2))) { | |
652 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
653 | return; | |
654 | } | |
655 | ||
656 | skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ | |
657 | ||
8c7b7faa | 658 | skb_copy_to_linear_data(skb, kaweth->rx_buf + 2, pkt_len); |
1da177e4 LT |
659 | |
660 | skb_put(skb, pkt_len); | |
661 | ||
662 | skb->protocol = eth_type_trans(skb, net); | |
663 | ||
664 | netif_rx(skb); | |
665 | ||
666 | kaweth->stats.rx_packets++; | |
667 | kaweth->stats.rx_bytes += pkt_len; | |
668 | } | |
669 | ||
670 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
671 | } | |
672 | ||
673 | /**************************************************************** | |
674 | * kaweth_open | |
675 | ****************************************************************/ | |
676 | static int kaweth_open(struct net_device *net) | |
677 | { | |
678 | struct kaweth_device *kaweth = netdev_priv(net); | |
679 | int res; | |
680 | ||
b98b98f9 ON |
681 | res = usb_autopm_get_interface(kaweth->intf); |
682 | if (res) { | |
db6b2219 | 683 | dev_err(&kaweth->intf->dev, "Interface cannot be resumed.\n"); |
b98b98f9 ON |
684 | return -EIO; |
685 | } | |
1da177e4 LT |
686 | res = kaweth_resubmit_rx_urb(kaweth, GFP_KERNEL); |
687 | if (res) | |
b98b98f9 | 688 | goto err_out; |
1da177e4 LT |
689 | |
690 | usb_fill_int_urb( | |
691 | kaweth->irq_urb, | |
692 | kaweth->dev, | |
693 | usb_rcvintpipe(kaweth->dev, 3), | |
694 | kaweth->intbuffer, | |
695 | INTBUFFERSIZE, | |
696 | int_callback, | |
697 | kaweth, | |
698 | 250); /* overriding the descriptor */ | |
699 | kaweth->irq_urb->transfer_dma = kaweth->intbufferhandle; | |
700 | kaweth->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
701 | ||
702 | res = usb_submit_urb(kaweth->irq_urb, GFP_KERNEL); | |
703 | if (res) { | |
704 | usb_kill_urb(kaweth->rx_urb); | |
b98b98f9 | 705 | goto err_out; |
1da177e4 | 706 | } |
1a2ea1df | 707 | kaweth->opened = 1; |
1da177e4 LT |
708 | |
709 | netif_start_queue(net); | |
710 | ||
711 | kaweth_async_set_rx_mode(kaweth); | |
712 | return 0; | |
b98b98f9 ON |
713 | |
714 | err_out: | |
ceb0c77e | 715 | usb_autopm_put_interface(kaweth->intf); |
b98b98f9 | 716 | return -EIO; |
1da177e4 LT |
717 | } |
718 | ||
719 | /**************************************************************** | |
b98b98f9 | 720 | * kaweth_kill_urbs |
1da177e4 | 721 | ****************************************************************/ |
1a2ea1df | 722 | static void kaweth_kill_urbs(struct kaweth_device *kaweth) |
1da177e4 | 723 | { |
1da177e4 LT |
724 | usb_kill_urb(kaweth->irq_urb); |
725 | usb_kill_urb(kaweth->rx_urb); | |
d23b536b | 726 | usb_kill_urb(kaweth->tx_urb); |
1da177e4 | 727 | |
4bb073c0 | 728 | cancel_delayed_work_sync(&kaweth->lowmem_work); |
1da177e4 LT |
729 | |
730 | /* a scheduled work may have resubmitted, | |
731 | we hit them again */ | |
732 | usb_kill_urb(kaweth->irq_urb); | |
733 | usb_kill_urb(kaweth->rx_urb); | |
1a2ea1df ON |
734 | } |
735 | ||
736 | /**************************************************************** | |
737 | * kaweth_close | |
738 | ****************************************************************/ | |
739 | static int kaweth_close(struct net_device *net) | |
740 | { | |
741 | struct kaweth_device *kaweth = netdev_priv(net); | |
742 | ||
743 | netif_stop_queue(net); | |
744 | kaweth->opened = 0; | |
745 | ||
746 | kaweth->status |= KAWETH_STATUS_CLOSING; | |
747 | ||
748 | kaweth_kill_urbs(kaweth); | |
1da177e4 LT |
749 | |
750 | kaweth->status &= ~KAWETH_STATUS_CLOSING; | |
751 | ||
ceb0c77e | 752 | usb_autopm_put_interface(kaweth->intf); |
b98b98f9 | 753 | |
1da177e4 LT |
754 | return 0; |
755 | } | |
756 | ||
b3ebd522 ON |
757 | static u32 kaweth_get_link(struct net_device *dev) |
758 | { | |
759 | struct kaweth_device *kaweth = netdev_priv(dev); | |
760 | ||
761 | return kaweth->linkstate; | |
1da177e4 LT |
762 | } |
763 | ||
0fc0b732 | 764 | static const struct ethtool_ops ops = { |
b3ebd522 | 765 | .get_link = kaweth_get_link |
1da177e4 LT |
766 | }; |
767 | ||
768 | /**************************************************************** | |
769 | * kaweth_usb_transmit_complete | |
770 | ****************************************************************/ | |
7d12e780 | 771 | static void kaweth_usb_transmit_complete(struct urb *urb) |
1da177e4 LT |
772 | { |
773 | struct kaweth_device *kaweth = urb->context; | |
774 | struct sk_buff *skb = kaweth->tx_skb; | |
c94cb314 | 775 | int status = urb->status; |
1da177e4 | 776 | |
c94cb314 ON |
777 | if (unlikely(status != 0)) |
778 | if (status != -ENOENT) | |
49ae25b0 GKH |
779 | dev_dbg(&urb->dev->dev, "%s: TX status %d.\n", |
780 | kaweth->net->name, status); | |
1da177e4 LT |
781 | |
782 | netif_wake_queue(kaweth->net); | |
783 | dev_kfree_skb_irq(skb); | |
784 | } | |
785 | ||
786 | /**************************************************************** | |
787 | * kaweth_start_xmit | |
788 | ****************************************************************/ | |
25a79c41 SH |
789 | static netdev_tx_t kaweth_start_xmit(struct sk_buff *skb, |
790 | struct net_device *net) | |
1da177e4 LT |
791 | { |
792 | struct kaweth_device *kaweth = netdev_priv(net); | |
793 | __le16 *private_header; | |
794 | ||
795 | int res; | |
796 | ||
4ff61c8f | 797 | spin_lock_irq(&kaweth->device_lock); |
1da177e4 | 798 | |
1da177e4 LT |
799 | kaweth_async_set_rx_mode(kaweth); |
800 | netif_stop_queue(net); | |
1a2ea1df ON |
801 | if (IS_BLOCKED(kaweth->status)) { |
802 | goto skip; | |
803 | } | |
1da177e4 LT |
804 | |
805 | /* We now decide whether we can put our special header into the sk_buff */ | |
39fba783 ED |
806 | if (skb_cow_head(skb, 2)) { |
807 | kaweth->stats.tx_errors++; | |
808 | netif_start_queue(net); | |
809 | spin_unlock_irq(&kaweth->device_lock); | |
810 | dev_kfree_skb_any(skb); | |
811 | return NETDEV_TX_OK; | |
1da177e4 LT |
812 | } |
813 | ||
814 | private_header = (__le16 *)__skb_push(skb, 2); | |
815 | *private_header = cpu_to_le16(skb->len-2); | |
816 | kaweth->tx_skb = skb; | |
817 | ||
818 | usb_fill_bulk_urb(kaweth->tx_urb, | |
819 | kaweth->dev, | |
820 | usb_sndbulkpipe(kaweth->dev, 2), | |
821 | private_header, | |
822 | skb->len, | |
823 | kaweth_usb_transmit_complete, | |
824 | kaweth); | |
825 | kaweth->end = 0; | |
1da177e4 LT |
826 | |
827 | if((res = usb_submit_urb(kaweth->tx_urb, GFP_ATOMIC))) | |
828 | { | |
4dc89948 | 829 | dev_warn(&net->dev, "kaweth failed tx_urb %d\n", res); |
1a2ea1df | 830 | skip: |
1da177e4 LT |
831 | kaweth->stats.tx_errors++; |
832 | ||
833 | netif_start_queue(net); | |
834 | dev_kfree_skb_irq(skb); | |
835 | } | |
836 | else | |
837 | { | |
838 | kaweth->stats.tx_packets++; | |
839 | kaweth->stats.tx_bytes += skb->len; | |
1da177e4 LT |
840 | } |
841 | ||
4ff61c8f | 842 | spin_unlock_irq(&kaweth->device_lock); |
1da177e4 | 843 | |
6ed10654 | 844 | return NETDEV_TX_OK; |
1da177e4 LT |
845 | } |
846 | ||
847 | /**************************************************************** | |
848 | * kaweth_set_rx_mode | |
849 | ****************************************************************/ | |
850 | static void kaweth_set_rx_mode(struct net_device *net) | |
851 | { | |
852 | struct kaweth_device *kaweth = netdev_priv(net); | |
853 | ||
854 | __u16 packet_filter_bitmap = KAWETH_PACKET_FILTER_DIRECTED | | |
855 | KAWETH_PACKET_FILTER_BROADCAST | | |
856 | KAWETH_PACKET_FILTER_MULTICAST; | |
857 | ||
49ae25b0 | 858 | netdev_dbg(net, "Setting Rx mode to %d\n", packet_filter_bitmap); |
1da177e4 LT |
859 | |
860 | netif_stop_queue(net); | |
861 | ||
862 | if (net->flags & IFF_PROMISC) { | |
863 | packet_filter_bitmap |= KAWETH_PACKET_FILTER_PROMISCUOUS; | |
864 | } | |
4cd24eaf | 865 | else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) { |
1da177e4 LT |
866 | packet_filter_bitmap |= KAWETH_PACKET_FILTER_ALL_MULTICAST; |
867 | } | |
868 | ||
869 | kaweth->packet_filter_bitmap = packet_filter_bitmap; | |
870 | netif_wake_queue(net); | |
871 | } | |
872 | ||
873 | /**************************************************************** | |
874 | * kaweth_async_set_rx_mode | |
875 | ****************************************************************/ | |
876 | static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth) | |
877 | { | |
710b523a | 878 | int result; |
1da177e4 | 879 | __u16 packet_filter_bitmap = kaweth->packet_filter_bitmap; |
710b523a | 880 | |
1da177e4 LT |
881 | kaweth->packet_filter_bitmap = 0; |
882 | if (packet_filter_bitmap == 0) | |
883 | return; | |
884 | ||
710b523a LF |
885 | if (in_interrupt()) |
886 | return; | |
887 | ||
1da177e4 LT |
888 | result = kaweth_control(kaweth, |
889 | usb_sndctrlpipe(kaweth->dev, 0), | |
890 | KAWETH_COMMAND_SET_PACKET_FILTER, | |
891 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
892 | packet_filter_bitmap, | |
893 | 0, | |
894 | (void *)&kaweth->scratch, | |
895 | 0, | |
896 | KAWETH_CONTROL_TIMEOUT); | |
897 | ||
898 | if(result < 0) { | |
db6b2219 GKH |
899 | dev_err(&kaweth->intf->dev, "Failed to set Rx mode: %d\n", |
900 | result); | |
1da177e4 LT |
901 | } |
902 | else { | |
49ae25b0 GKH |
903 | netdev_dbg(kaweth->net, "Set Rx mode to %d\n", |
904 | packet_filter_bitmap); | |
1da177e4 | 905 | } |
1da177e4 LT |
906 | } |
907 | ||
908 | /**************************************************************** | |
909 | * kaweth_netdev_stats | |
910 | ****************************************************************/ | |
911 | static struct net_device_stats *kaweth_netdev_stats(struct net_device *dev) | |
912 | { | |
913 | struct kaweth_device *kaweth = netdev_priv(dev); | |
914 | return &kaweth->stats; | |
915 | } | |
916 | ||
917 | /**************************************************************** | |
918 | * kaweth_tx_timeout | |
919 | ****************************************************************/ | |
920 | static void kaweth_tx_timeout(struct net_device *net) | |
921 | { | |
922 | struct kaweth_device *kaweth = netdev_priv(net); | |
923 | ||
4dc89948 | 924 | dev_warn(&net->dev, "%s: Tx timed out. Resetting.\n", net->name); |
1da177e4 | 925 | kaweth->stats.tx_errors++; |
860e9538 | 926 | netif_trans_update(net); |
1da177e4 LT |
927 | |
928 | usb_unlink_urb(kaweth->tx_urb); | |
929 | } | |
930 | ||
1a2ea1df ON |
931 | /**************************************************************** |
932 | * kaweth_suspend | |
933 | ****************************************************************/ | |
934 | static int kaweth_suspend(struct usb_interface *intf, pm_message_t message) | |
935 | { | |
936 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
937 | unsigned long flags; | |
938 | ||
939 | spin_lock_irqsave(&kaweth->device_lock, flags); | |
940 | kaweth->status |= KAWETH_STATUS_SUSPENDING; | |
941 | spin_unlock_irqrestore(&kaweth->device_lock, flags); | |
942 | ||
943 | kaweth_kill_urbs(kaweth); | |
944 | return 0; | |
945 | } | |
946 | ||
947 | /**************************************************************** | |
948 | * kaweth_resume | |
949 | ****************************************************************/ | |
950 | static int kaweth_resume(struct usb_interface *intf) | |
951 | { | |
952 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
953 | unsigned long flags; | |
954 | ||
955 | spin_lock_irqsave(&kaweth->device_lock, flags); | |
956 | kaweth->status &= ~KAWETH_STATUS_SUSPENDING; | |
957 | spin_unlock_irqrestore(&kaweth->device_lock, flags); | |
958 | ||
959 | if (!kaweth->opened) | |
960 | return 0; | |
961 | kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); | |
962 | kaweth_resubmit_int_urb(kaweth, GFP_NOIO); | |
963 | ||
964 | return 0; | |
965 | } | |
966 | ||
1da177e4 LT |
967 | /**************************************************************** |
968 | * kaweth_probe | |
969 | ****************************************************************/ | |
321ea8b2 ON |
970 | |
971 | ||
972 | static const struct net_device_ops kaweth_netdev_ops = { | |
973 | .ndo_open = kaweth_open, | |
974 | .ndo_stop = kaweth_close, | |
975 | .ndo_start_xmit = kaweth_start_xmit, | |
976 | .ndo_tx_timeout = kaweth_tx_timeout, | |
afc4b13d | 977 | .ndo_set_rx_mode = kaweth_set_rx_mode, |
321ea8b2 | 978 | .ndo_get_stats = kaweth_netdev_stats, |
240c102d BH |
979 | .ndo_set_mac_address = eth_mac_addr, |
980 | .ndo_validate_addr = eth_validate_addr, | |
321ea8b2 ON |
981 | }; |
982 | ||
1da177e4 LT |
983 | static int kaweth_probe( |
984 | struct usb_interface *intf, | |
985 | const struct usb_device_id *id /* from id_table */ | |
986 | ) | |
987 | { | |
49ae25b0 GKH |
988 | struct device *dev = &intf->dev; |
989 | struct usb_device *udev = interface_to_usbdev(intf); | |
1da177e4 LT |
990 | struct kaweth_device *kaweth; |
991 | struct net_device *netdev; | |
992 | const eth_addr_t bcast_addr = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; | |
993 | int result = 0; | |
575ced7f | 994 | int rv = -EIO; |
1da177e4 | 995 | |
49ae25b0 GKH |
996 | dev_dbg(dev, |
997 | "Kawasaki Device Probe (Device number:%d): 0x%4.4x:0x%4.4x:0x%4.4x\n", | |
998 | udev->devnum, le16_to_cpu(udev->descriptor.idVendor), | |
999 | le16_to_cpu(udev->descriptor.idProduct), | |
1000 | le16_to_cpu(udev->descriptor.bcdDevice)); | |
1da177e4 | 1001 | |
49ae25b0 | 1002 | dev_dbg(dev, "Device at %p\n", udev); |
1da177e4 | 1003 | |
49ae25b0 GKH |
1004 | dev_dbg(dev, "Descriptor length: %x type: %x\n", |
1005 | (int)udev->descriptor.bLength, | |
1006 | (int)udev->descriptor.bDescriptorType); | |
1da177e4 LT |
1007 | |
1008 | netdev = alloc_etherdev(sizeof(*kaweth)); | |
1009 | if (!netdev) | |
1010 | return -ENOMEM; | |
1011 | ||
1012 | kaweth = netdev_priv(netdev); | |
49ae25b0 | 1013 | kaweth->dev = udev; |
1da177e4 | 1014 | kaweth->net = netdev; |
60bcabd0 | 1015 | kaweth->intf = intf; |
1da177e4 LT |
1016 | |
1017 | spin_lock_init(&kaweth->device_lock); | |
1018 | init_waitqueue_head(&kaweth->term_wait); | |
1019 | ||
49ae25b0 | 1020 | dev_dbg(dev, "Resetting.\n"); |
1da177e4 LT |
1021 | |
1022 | kaweth_reset(kaweth); | |
1023 | ||
1024 | /* | |
1025 | * If high byte of bcdDevice is nonzero, firmware is already | |
1026 | * downloaded. Don't try to do it again, or we'll hang the device. | |
1027 | */ | |
1028 | ||
49ae25b0 GKH |
1029 | if (le16_to_cpu(udev->descriptor.bcdDevice) >> 8) { |
1030 | dev_info(dev, "Firmware present in device.\n"); | |
1da177e4 LT |
1031 | } else { |
1032 | /* Download the firmware */ | |
49ae25b0 | 1033 | dev_info(dev, "Downloading firmware...\n"); |
1da177e4 | 1034 | kaweth->firmware_buf = (__u8 *)__get_free_page(GFP_KERNEL); |
575ced7f ON |
1035 | if (!kaweth->firmware_buf) { |
1036 | rv = -ENOMEM; | |
1037 | goto err_free_netdev; | |
1038 | } | |
1da177e4 | 1039 | if ((result = kaweth_download_firmware(kaweth, |
79682499 | 1040 | "kaweth/new_code.bin", |
1da177e4 LT |
1041 | 100, |
1042 | 2)) < 0) { | |
49ae25b0 | 1043 | dev_err(dev, "Error downloading firmware (%d)\n", |
db6b2219 | 1044 | result); |
1da177e4 LT |
1045 | goto err_fw; |
1046 | } | |
1047 | ||
1048 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 1049 | "kaweth/new_code_fix.bin", |
1da177e4 LT |
1050 | 100, |
1051 | 3)) < 0) { | |
49ae25b0 | 1052 | dev_err(dev, "Error downloading firmware fix (%d)\n", |
db6b2219 | 1053 | result); |
1da177e4 LT |
1054 | goto err_fw; |
1055 | } | |
1056 | ||
1057 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 1058 | "kaweth/trigger_code.bin", |
1da177e4 LT |
1059 | 126, |
1060 | 2)) < 0) { | |
49ae25b0 | 1061 | dev_err(dev, "Error downloading trigger code (%d)\n", |
db6b2219 | 1062 | result); |
1da177e4 LT |
1063 | goto err_fw; |
1064 | ||
1065 | } | |
1066 | ||
1067 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 1068 | "kaweth/trigger_code_fix.bin", |
1da177e4 LT |
1069 | 126, |
1070 | 3)) < 0) { | |
49ae25b0 | 1071 | dev_err(dev, "Error downloading trigger code fix (%d)\n", result); |
1da177e4 LT |
1072 | goto err_fw; |
1073 | } | |
1074 | ||
1075 | ||
1076 | if ((result = kaweth_trigger_firmware(kaweth, 126)) < 0) { | |
49ae25b0 | 1077 | dev_err(dev, "Error triggering firmware (%d)\n", result); |
1da177e4 LT |
1078 | goto err_fw; |
1079 | } | |
1080 | ||
1081 | /* Device will now disappear for a moment... */ | |
49ae25b0 | 1082 | dev_info(dev, "Firmware loaded. I'll be back...\n"); |
1da177e4 LT |
1083 | err_fw: |
1084 | free_page((unsigned long)kaweth->firmware_buf); | |
1085 | free_netdev(netdev); | |
1086 | return -EIO; | |
1087 | } | |
1088 | ||
1089 | result = kaweth_read_configuration(kaweth); | |
1090 | ||
1091 | if(result < 0) { | |
49ae25b0 | 1092 | dev_err(dev, "Error reading configuration (%d), no net device created\n", result); |
1da177e4 LT |
1093 | goto err_free_netdev; |
1094 | } | |
1095 | ||
49ae25b0 GKH |
1096 | dev_info(dev, "Statistics collection: %x\n", kaweth->configuration.statistics_mask); |
1097 | dev_info(dev, "Multicast filter limit: %x\n", kaweth->configuration.max_multicast_filters & ((1 << 15) - 1)); | |
1098 | dev_info(dev, "MTU: %d\n", le16_to_cpu(kaweth->configuration.segment_size)); | |
1099 | dev_info(dev, "Read MAC address %pM\n", kaweth->configuration.hw_addr); | |
1da177e4 LT |
1100 | |
1101 | if(!memcmp(&kaweth->configuration.hw_addr, | |
1102 | &bcast_addr, | |
1103 | sizeof(bcast_addr))) { | |
49ae25b0 | 1104 | dev_err(dev, "Firmware not functioning properly, no net device created\n"); |
1da177e4 LT |
1105 | goto err_free_netdev; |
1106 | } | |
1107 | ||
1108 | if(kaweth_set_urb_size(kaweth, KAWETH_BUF_SIZE) < 0) { | |
49ae25b0 | 1109 | dev_dbg(dev, "Error setting URB size\n"); |
1da177e4 LT |
1110 | goto err_free_netdev; |
1111 | } | |
1112 | ||
1113 | if(kaweth_set_sofs_wait(kaweth, KAWETH_SOFS_TO_WAIT) < 0) { | |
49ae25b0 | 1114 | dev_err(dev, "Error setting SOFS wait\n"); |
1da177e4 LT |
1115 | goto err_free_netdev; |
1116 | } | |
1117 | ||
1118 | result = kaweth_set_receive_filter(kaweth, | |
1119 | KAWETH_PACKET_FILTER_DIRECTED | | |
1120 | KAWETH_PACKET_FILTER_BROADCAST | | |
1121 | KAWETH_PACKET_FILTER_MULTICAST); | |
1122 | ||
1123 | if(result < 0) { | |
49ae25b0 | 1124 | dev_err(dev, "Error setting receive filter\n"); |
1da177e4 LT |
1125 | goto err_free_netdev; |
1126 | } | |
1127 | ||
49ae25b0 | 1128 | dev_dbg(dev, "Initializing net device.\n"); |
1da177e4 LT |
1129 | |
1130 | kaweth->tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1131 | if (!kaweth->tx_urb) | |
1132 | goto err_free_netdev; | |
1133 | kaweth->rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1134 | if (!kaweth->rx_urb) | |
1135 | goto err_only_tx; | |
1136 | kaweth->irq_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1137 | if (!kaweth->irq_urb) | |
1138 | goto err_tx_and_rx; | |
1139 | ||
997ea58e | 1140 | kaweth->intbuffer = usb_alloc_coherent( kaweth->dev, |
1da177e4 LT |
1141 | INTBUFFERSIZE, |
1142 | GFP_KERNEL, | |
1143 | &kaweth->intbufferhandle); | |
1144 | if (!kaweth->intbuffer) | |
1145 | goto err_tx_and_rx_and_irq; | |
997ea58e | 1146 | kaweth->rx_buf = usb_alloc_coherent( kaweth->dev, |
1da177e4 LT |
1147 | KAWETH_BUF_SIZE, |
1148 | GFP_KERNEL, | |
1149 | &kaweth->rxbufferhandle); | |
1150 | if (!kaweth->rx_buf) | |
1151 | goto err_all_but_rxbuf; | |
1152 | ||
1153 | memcpy(netdev->broadcast, &bcast_addr, sizeof(bcast_addr)); | |
1154 | memcpy(netdev->dev_addr, &kaweth->configuration.hw_addr, | |
1155 | sizeof(kaweth->configuration.hw_addr)); | |
1156 | ||
321ea8b2 | 1157 | netdev->netdev_ops = &kaweth_netdev_ops; |
1da177e4 | 1158 | netdev->watchdog_timeo = KAWETH_TX_TIMEOUT; |
1da177e4 | 1159 | netdev->mtu = le16_to_cpu(kaweth->configuration.segment_size); |
7ad24ea4 | 1160 | netdev->ethtool_ops = &ops; |
1da177e4 LT |
1161 | |
1162 | /* kaweth is zeroed as part of alloc_netdev */ | |
c4028958 | 1163 | INIT_DELAYED_WORK(&kaweth->lowmem_work, kaweth_resubmit_tl); |
1da177e4 LT |
1164 | usb_set_intfdata(intf, kaweth); |
1165 | ||
49ae25b0 | 1166 | SET_NETDEV_DEV(netdev, dev); |
1da177e4 | 1167 | if (register_netdev(netdev) != 0) { |
49ae25b0 | 1168 | dev_err(dev, "Error registering netdev.\n"); |
1da177e4 LT |
1169 | goto err_intfdata; |
1170 | } | |
1171 | ||
49ae25b0 | 1172 | dev_info(dev, "kaweth interface created at %s\n", |
880c9c66 | 1173 | kaweth->net->name); |
1da177e4 | 1174 | |
1da177e4 LT |
1175 | return 0; |
1176 | ||
1177 | err_intfdata: | |
1178 | usb_set_intfdata(intf, NULL); | |
997ea58e | 1179 | usb_free_coherent(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); |
1da177e4 | 1180 | err_all_but_rxbuf: |
997ea58e | 1181 | usb_free_coherent(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); |
1da177e4 LT |
1182 | err_tx_and_rx_and_irq: |
1183 | usb_free_urb(kaweth->irq_urb); | |
1184 | err_tx_and_rx: | |
1185 | usb_free_urb(kaweth->rx_urb); | |
1186 | err_only_tx: | |
1187 | usb_free_urb(kaweth->tx_urb); | |
1188 | err_free_netdev: | |
1189 | free_netdev(netdev); | |
1190 | ||
575ced7f | 1191 | return rv; |
1da177e4 LT |
1192 | } |
1193 | ||
1194 | /**************************************************************** | |
1195 | * kaweth_disconnect | |
1196 | ****************************************************************/ | |
1197 | static void kaweth_disconnect(struct usb_interface *intf) | |
1198 | { | |
1199 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
1200 | struct net_device *netdev; | |
1201 | ||
1da177e4 LT |
1202 | usb_set_intfdata(intf, NULL); |
1203 | if (!kaweth) { | |
25985edc | 1204 | dev_warn(&intf->dev, "unregistering non-existent device\n"); |
1da177e4 LT |
1205 | return; |
1206 | } | |
1207 | netdev = kaweth->net; | |
1da177e4 | 1208 | |
49ae25b0 | 1209 | netdev_dbg(kaweth->net, "Unregistering net device\n"); |
1da177e4 LT |
1210 | unregister_netdev(netdev); |
1211 | ||
1212 | usb_free_urb(kaweth->rx_urb); | |
1213 | usb_free_urb(kaweth->tx_urb); | |
1214 | usb_free_urb(kaweth->irq_urb); | |
1215 | ||
997ea58e DM |
1216 | usb_free_coherent(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); |
1217 | usb_free_coherent(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); | |
1da177e4 LT |
1218 | |
1219 | free_netdev(netdev); | |
1220 | } | |
1221 | ||
1222 | ||
1223 | // FIXME this completion stuff is a modified clone of | |
1224 | // an OLD version of some stuff in usb.c ... | |
1225 | struct usb_api_data { | |
1226 | wait_queue_head_t wqh; | |
1227 | int done; | |
1228 | }; | |
1229 | ||
1230 | /*-------------------------------------------------------------------* | |
1231 | * completion handler for compatibility wrappers (sync control/bulk) * | |
1232 | *-------------------------------------------------------------------*/ | |
7d12e780 | 1233 | static void usb_api_blocking_completion(struct urb *urb) |
1da177e4 LT |
1234 | { |
1235 | struct usb_api_data *awd = (struct usb_api_data *)urb->context; | |
1236 | ||
1237 | awd->done=1; | |
1238 | wake_up(&awd->wqh); | |
1239 | } | |
1240 | ||
1241 | /*-------------------------------------------------------------------* | |
1242 | * COMPATIBILITY STUFF * | |
1243 | *-------------------------------------------------------------------*/ | |
1244 | ||
1245 | // Starts urb and waits for completion or timeout | |
1246 | static int usb_start_wait_urb(struct urb *urb, int timeout, int* actual_length) | |
1247 | { | |
1248 | struct usb_api_data awd; | |
1249 | int status; | |
1250 | ||
1251 | init_waitqueue_head(&awd.wqh); | |
1252 | awd.done = 0; | |
1253 | ||
1254 | urb->context = &awd; | |
49c9e7c2 | 1255 | status = usb_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
1256 | if (status) { |
1257 | // something went wrong | |
1258 | usb_free_urb(urb); | |
1259 | return status; | |
1260 | } | |
1261 | ||
1262 | if (!wait_event_timeout(awd.wqh, awd.done, timeout)) { | |
1263 | // timeout | |
4dc89948 | 1264 | dev_warn(&urb->dev->dev, "usb_control/bulk_msg: timeout\n"); |
1da177e4 LT |
1265 | usb_kill_urb(urb); // remove urb safely |
1266 | status = -ETIMEDOUT; | |
1267 | } | |
1268 | else { | |
1269 | status = urb->status; | |
1270 | } | |
1271 | ||
1272 | if (actual_length) { | |
1273 | *actual_length = urb->actual_length; | |
1274 | } | |
1275 | ||
1276 | usb_free_urb(urb); | |
1277 | return status; | |
1278 | } | |
1279 | ||
1280 | /*-------------------------------------------------------------------*/ | |
1281 | // returns status (negative) or length (positive) | |
1282 | static int kaweth_internal_control_msg(struct usb_device *usb_dev, | |
1283 | unsigned int pipe, | |
1284 | struct usb_ctrlrequest *cmd, void *data, | |
1285 | int len, int timeout) | |
1286 | { | |
1287 | struct urb *urb; | |
1288 | int retv; | |
b98b98f9 | 1289 | int length = 0; /* shut up GCC */ |
1da177e4 | 1290 | |
e4c7f259 | 1291 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
1da177e4 LT |
1292 | if (!urb) |
1293 | return -ENOMEM; | |
1294 | ||
1295 | usb_fill_control_urb(urb, usb_dev, pipe, (unsigned char*)cmd, data, | |
1296 | len, usb_api_blocking_completion, NULL); | |
1297 | ||
1298 | retv = usb_start_wait_urb(urb, timeout, &length); | |
1299 | if (retv < 0) { | |
1300 | return retv; | |
1301 | } | |
1302 | else { | |
1303 | return length; | |
1304 | } | |
1305 | } | |
1306 | ||
d632eb1b | 1307 | module_usb_driver(kaweth_driver); |